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La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas
Zhao, Kun1,2; He, Fang1; Huang, Zhen1; Zheng, Anqing1; Li, Haibin1; Zhao, Zengli1
2014-07-01
发表期刊CHINESE JOURNAL OF CATALYSIS
卷号35期号:7页码:1196-1205
摘要We prepared perovskite-type oxides La1-xSrxFeO3 (x = 0, 0.3, 0.5, 0.9) by a combustion method and used these as oxygen carriers for the partial oxidation of methane. X-ray diffration, scanning electron microscopy and H-2 temperature-programmed reduction techniques were used to characterize the samples. Their reduction and oxidation activities were investigated using a thermogravimetric analysis reactor and fixed-bed reaction equipment, respectively. The results showed that the lattice oxygen in La1-xSrxFeO3 was suitable for the partial oxidation of methane to produce syngas. Their capacity to provide oxygen was enhanced by the partial substitution of La3+ by Sr2+ and the synthesized materials have good regenerability. The optimal degree of Sr substitution was found to be x = 0.3-0.5 for La1-xSrxFeO3 with regard to reactivity, selectivity, and oxygen-donating ability. CH4 conversion was higher than 70%, and the n(H-2)/n(CO) ratio remained about 2:1 and no obvious decomposition of CH4 occurred. (C) 2014, Dalian Institute of Chemical Physics, Chinese Academy of Sciences. Published by Elsevier B.V. All rights reserved.
文章类型Article
关键词Perovskite Lattice Oxygen Thermogravimetric Redox Partial Oxidation Syngas
WOS标题词Science & Technology ; Physical Sciences ; Technology
DOI10.1016/S1872-2067(14)60084-X
研究领域[WOS]Chemistry ; Engineering
关键词[WOS]CHEMICAL-LOOPING COMBUSTION ; SYNTHESIS GAS ; LATTICE OXYGEN ; BED REACTOR ; HYDROGEN ; OXIDES ; FE ; CU
收录类别SCI
语种英语
WOS类目Chemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS记录号WOS:000338913700027
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被引频次:13[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10771
专题中国科学院广州能源研究所
作者单位1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
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Zhao, Kun,He, Fang,Huang, Zhen,et al. La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas[J]. CHINESE JOURNAL OF CATALYSIS,2014,35(7):1196-1205.
APA Zhao, Kun,He, Fang,Huang, Zhen,Zheng, Anqing,Li, Haibin,&Zhao, Zengli.(2014).La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas.CHINESE JOURNAL OF CATALYSIS,35(7),1196-1205.
MLA Zhao, Kun,et al."La1-xSrxFeO3 perovskites as oxygen carriers for the partial oxidation of methane to syngas".CHINESE JOURNAL OF CATALYSIS 35.7(2014):1196-1205.
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